Flashcards in fiber optic 16 Deck (60)
A method used to lock and mark one end of a line in order to allow someone to safely work on the other end.
A card made up of material similar to photographic film that changes colors when exposed to light.
Visible light is generated at the following wavelengths
Between 390 nm and 780 nm
Allows only a single mode of light to propagate through the fiber core. This is the most common type of fiber used in telecommunications.
Allows many modes of light to propagate through the core. This type of fiber has a larger core and is used only for short distance data links. The bandwidth is limited due to light dispersion.
The center of the fiber that carries the transmitted light.
The glass material surrounding the fiber core. This glass has a lower refractive index and reflects the light back into the core, thus maintaining the light level over a long distance.
The acrylic or plastic material applied over the optical fiber core and cladding. This material protects the glass and adds to its strength.
The ratio of the velocity of light of two mediums of optical glass.
A photo diode used to detect light from an optical fiber and convert the light to an electrical source.
The difference between transmitted and received power resulting from the loss through equipment, lines, or other transmission devices; usually expressed in decibels.
erbium-doped fiber amplifier
Ytterbium Erbium-doped fiber amplifier
Fiber Loss at 1310nm
Fiber Loss at 1550nm
How many feet in a Kilometer
Sum of all the losses associated with a fiber link between the optical fiber transmitter and the optical fiber receiver.
Fusion Splice loss (typical)
Mechanical Splice loss (typical)
0.5 dB average
Convert mW to dBm
dBm = 10log(mW)
Convert dBm to mW
mW = 10(dB/10)
A jumper cable for optical connections.
A board for making optical connections consisting of sleeves used to line up two connectors.
Fibers are contained in a plastic tube much larger than the optical fibers. The fibers can move freely within the
Color-coded tubes that house and protect the optical fibers within a fiber optic cable.
consists of larger buffer tubes with the fibers inside, surrounded by fiberglass water block tape, armor, two steel strength members, and a jacket.
fibers that are arranged side by side
the process by which two pieces of glass are physically melted together